When we applied the threshold level of detection for negative samples, we found mean IL-10/IL-6 and IL-10/IFNγ ratios higher both for PIOL (IL-10/IL-6, 27.2±24; IL-10/IFNγ, 85.98±81) and OCL (IL-10/IL-6, 26.68±25; IL-10/IFNγ, 33.58±30), than for uveitis (IL-10/IL-6, 0.15±0.22; IL-10/IFNγ, 0.54±0.66) samples. This evidence concerns the gene IFNG and uveitis.